id summary reporter owner description type status priority component version resolution keywords cc guest host
8173 Network bridging isn't working limpens "I'm running Debian Squeeze and upgraded recently to Virtualbox 4.0.2.
Since the upgrade network bridging isn't working anymore. I use bridging for connecting guests to pptp VPN's (since NAT doesn't support GRE).
I tested Debian (Squeeze) guests as well as Windows Vista Guests, but all fail to work. I've verified that NAT and host-only networking do work. I haven't tested internal networking yet.
For testing I tried all adapters (Intel and PCnet), but these all fail.
I even tried deinstalling 4.0.2 and install 3.2.12 but network bridging stays broken.
In one of the tickets I found a qdisc_debug patch which I deployed on 4.0.2 and then tested again, to see if that would give some more info. But for me it didn't.
the output of tc:
qdisc mq 0: dev wlan0 root
qdisc pfifo_fast 0: dev eth0 root refcnt 2 bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1
Since I depend on using network bridging I hope someone can help me out quickly.
Attached you find:
- the vbox.log
- the debug info from kern.log after deploying the patch
" defect closed major network/hostif VirtualBox 4.0.2 worksforme other Linux